How can I specify the region of a Google Cloud Function?

Question

I\'m currently using Google Cloud Function to build up my restful API. However, I\'ve found that it\'s slow because the my Google-Cloud-Function server is on \"us-central\",

Answer 1

It seems that Google Cloud Functions are currently available only in region us-central1. If I go to "Create function" (https://console.cloud.google.com/functions/add), the Region dropdown has only one choice, and it's us-central1.